From: Song Gao <gaosong@loongson.cn>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, thuth@redhat.com,
chenhuacai@loongson.cn, philmd@redhat.com,
richard.henderson@linaro.org, laurent@vivier.eu,
peterx@redhat.com, f4bug@amsat.org, yangxiaojuan@loongson.cn,
alistair.francis@wdc.com, maobibo@loongson.cn,
pbonzini@redhat.com, bmeng.cn@gmail.com, alex.bennee@linaro.org,
gaosong@loongson.cn
Subject: [PATCH v6 16/21] target/loongarch: Add disassembler
Date: Fri, 17 Sep 2021 16:12:55 +0800 [thread overview]
Message-ID: <1631866380-31017-17-git-send-email-gaosong@loongson.cn> (raw)
In-Reply-To: <1631866380-31017-1-git-send-email-gaosong@loongson.cn>
This patch add support for disassembling via option '-d in_asm'.
Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: XiaoJuan Yang <yangxiaojuan@loongson.cn>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
---
MAINTAINERS | 1 +
disas/loongarch.c | 2511 +++++++++++++++++++++++++++++++++++++++++++++++
disas/meson.build | 1 +
include/disas/dis-asm.h | 2 +
meson.build | 1 +
5 files changed, 2516 insertions(+)
create mode 100644 disas/loongarch.c
diff --git a/MAINTAINERS b/MAINTAINERS
index ad372a2..44b37ea 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -214,6 +214,7 @@ LoongArch TCG CPUS
M: Song Gao <gaosong@loongson.cn>
S: Maintained
F: target/loongarch/
+F: disas/loongarch.c
M68K TCG CPUs
M: Laurent Vivier <laurent@vivier.eu>
diff --git a/disas/loongarch.c b/disas/loongarch.c
new file mode 100644
index 0000000..0647a99
--- /dev/null
+++ b/disas/loongarch.c
@@ -0,0 +1,2511 @@
+/*
+ * QEMU LoongArch Disassembler
+ *
+ * Copyright (c) 2021 Loongson Technology Corporation Limited.
+ *
+ * SPDX-License-Identifier: LGPL-2.1+
+ */
+
+#include "qemu/osdep.h"
+#include "disas/dis-asm.h"
+
+#define INSNLEN 4
+
+/* enums */
+typedef enum {
+ la_op_illegal = 0,
+ la_op_clo_w = 1,
+ la_op_clz_w = 2,
+ la_op_cto_w = 3,
+ la_op_ctz_w = 4,
+ la_op_clo_d = 5,
+ la_op_clz_d = 6,
+ la_op_cto_d = 7,
+ la_op_ctz_d = 8,
+ la_op_revb_2h = 9,
+ la_op_revb_4h = 10,
+ la_op_revb_2w = 11,
+ la_op_revb_d = 12,
+ la_op_revh_2w = 13,
+ la_op_revh_d = 14,
+ la_op_bitrev_4b = 15,
+ la_op_bitrev_8b = 16,
+ la_op_bitrev_w = 17,
+ la_op_bitrev_d = 18,
+ la_op_ext_w_h = 19,
+ la_op_ext_w_b = 20,
+ la_op_rdtime_d = 21,
+ la_op_cpucfg = 22,
+ la_op_asrtle_d = 23,
+ la_op_asrtgt_d = 24,
+ la_op_alsl_w = 25,
+ la_op_alsl_wu = 26,
+ la_op_bytepick_w = 27,
+ la_op_bytepick_d = 28,
+ la_op_add_w = 29,
+ la_op_add_d = 30,
+ la_op_sub_w = 31,
+ la_op_sub_d = 32,
+ la_op_slt = 33,
+ la_op_sltu = 34,
+ la_op_maskeqz = 35,
+ la_op_masknez = 36,
+ la_op_nor = 37,
+ la_op_and = 38,
+ la_op_or = 39,
+ la_op_xor = 40,
+ la_op_orn = 41,
+ la_op_andn = 42,
+ la_op_sll_w = 43,
+ la_op_srl_w = 44,
+ la_op_sra_w = 45,
+ la_op_sll_d = 46,
+ la_op_srl_d = 47,
+ la_op_sra_d = 48,
+ la_op_rotr_w = 49,
+ la_op_rotr_d = 50,
+ la_op_mul_w = 51,
+ la_op_mulh_w = 52,
+ la_op_mulh_wu = 53,
+ la_op_mul_d = 54,
+ la_op_mulh_d = 55,
+ la_op_mulh_du = 56,
+ la_op_mulw_d_w = 57,
+ la_op_mulw_d_wu = 58,
+ la_op_div_w = 59,
+ la_op_mod_w = 60,
+ la_op_div_wu = 61,
+ la_op_mod_wu = 62,
+ la_op_div_d = 63,
+ la_op_mod_d = 64,
+ la_op_div_du = 65,
+ la_op_mod_du = 66,
+ la_op_crc_w_b_w = 67,
+ la_op_crc_w_h_w = 68,
+ la_op_crc_w_w_w = 69,
+ la_op_crc_w_d_w = 70,
+ la_op_crcc_w_b_w = 71,
+ la_op_crcc_w_h_w = 72,
+ la_op_crcc_w_w_w = 73,
+ la_op_crcc_w_d_w = 74,
+ la_op_break = 75,
+ la_op_syscall = 76,
+ la_op_alsl_d = 77,
+ la_op_slli_w = 78,
+ la_op_slli_d = 79,
+ la_op_srli_w = 80,
+ la_op_srli_d = 81,
+ la_op_srai_w = 82,
+ la_op_srai_d = 83,
+ la_op_rotri_w = 84,
+ la_op_rotri_d = 85,
+ la_op_bstrins_w = 86,
+ la_op_bstrpick_w = 87,
+ la_op_bstrins_d = 88,
+ la_op_bstrpick_d = 89,
+ la_op_fadd_s = 90,
+ la_op_fadd_d = 91,
+ la_op_fsub_s = 92,
+ la_op_fsub_d = 93,
+ la_op_fmul_s = 94,
+ la_op_fmul_d = 95,
+ la_op_fdiv_s = 96,
+ la_op_fdiv_d = 97,
+ la_op_fmax_s = 98,
+ la_op_fmax_d = 99,
+ la_op_fmin_s = 100,
+ la_op_fmin_d = 101,
+ la_op_fmaxa_s = 102,
+ la_op_fmaxa_d = 103,
+ la_op_fmina_s = 104,
+ la_op_fmina_d = 105,
+ la_op_fscaleb_s = 106,
+ la_op_fscaleb_d = 107,
+ la_op_fcopysign_s = 108,
+ la_op_fcopysign_d = 109,
+ la_op_fabs_s = 110,
+ la_op_fabs_d = 111,
+ la_op_fneg_s = 112,
+ la_op_fneg_d = 113,
+ la_op_flogb_s = 114,
+ la_op_flogb_d = 115,
+ la_op_fclass_s = 116,
+ la_op_fclass_d = 117,
+ la_op_fsqrt_s = 118,
+ la_op_fsqrt_d = 119,
+ la_op_frecip_s = 120,
+ la_op_frecip_d = 121,
+ la_op_frsqrt_s = 122,
+ la_op_frsqrt_d = 123,
+ la_op_fmov_s = 124,
+ la_op_fmov_d = 125,
+ la_op_movgr2fr_w = 126,
+ la_op_movgr2fr_d = 127,
+ la_op_movgr2frh_w = 128,
+ la_op_movfr2gr_s = 129,
+ la_op_movfr2gr_d = 130,
+ la_op_movfrh2gr_s = 131,
+ la_op_movgr2fcsr = 132,
+ la_op_movfcsr2gr = 133,
+ la_op_movfr2cf = 134,
+ la_op_movcf2fr = 135,
+ la_op_movgr2cf = 136,
+ la_op_movcf2gr = 137,
+ la_op_fcvt_s_d = 138,
+ la_op_fcvt_d_s = 139,
+ la_op_ftintrm_w_s = 140,
+ la_op_ftintrm_w_d = 141,
+ la_op_ftintrm_l_s = 142,
+ la_op_ftintrm_l_d = 143,
+ la_op_ftintrp_w_s = 144,
+ la_op_ftintrp_w_d = 145,
+ la_op_ftintrp_l_s = 146,
+ la_op_ftintrp_l_d = 147,
+ la_op_ftintrz_w_s = 148,
+ la_op_ftintrz_w_d = 149,
+ la_op_ftintrz_l_s = 150,
+ la_op_ftintrz_l_d = 151,
+ la_op_ftintrne_w_s = 152,
+ la_op_ftintrne_w_d = 153,
+ la_op_ftintrne_l_s = 154,
+ la_op_ftintrne_l_d = 155,
+ la_op_ftint_w_s = 156,
+ la_op_ftint_w_d = 157,
+ la_op_ftint_l_s = 158,
+ la_op_ftint_l_d = 159,
+ la_op_ffint_s_w = 160,
+ la_op_ffint_s_l = 161,
+ la_op_ffint_d_w = 162,
+ la_op_ffint_d_l = 163,
+ la_op_frint_s = 164,
+ la_op_frint_d = 165,
+ la_op_slti = 166,
+ la_op_sltui = 167,
+ la_op_addi_w = 168,
+ la_op_addi_d = 169,
+ la_op_lu52i_d = 170,
+ la_op_addi = 171,
+ la_op_ori = 172,
+ la_op_xori = 173,
+ la_op_rdtimel_w = 174,
+ la_op_rdtimeh_w = 175,
+ la_op_fmadd_s = 176,
+ la_op_fmadd_d = 177,
+ la_op_fmsub_s = 178,
+ la_op_fmsub_d = 179,
+ la_op_fnmadd_s = 180,
+ la_op_fnmadd_d = 181,
+ la_op_fnmsub_s = 182,
+ la_op_fnmsub_d = 183,
+ la_op_fcmp_cond_s = 184,
+ la_op_fcmp_cond_d = 185,
+ la_op_fsel = 186,
+ la_op_addu16i_d = 187,
+ la_op_lu12i_w = 188,
+ la_op_lu32i_d = 189,
+ la_op_pcaddi = 190,
+ la_op_pcalau12i = 191,
+ la_op_pcaddu12i = 192,
+ la_op_pcaddu18i = 193,
+ la_op_ll_w = 194,
+ la_op_sc_w = 195,
+ la_op_ll_d = 196,
+ la_op_sc_d = 197,
+ la_op_ldptr_w = 198,
+ la_op_stptr_w = 199,
+ la_op_ldptr_d = 200,
+ la_op_stptr_d = 201,
+ la_op_ld_b = 202,
+ la_op_ld_h = 203,
+ la_op_ld_w = 204,
+ la_op_ld_d = 205,
+ la_op_st_b = 206,
+ la_op_st_h = 207,
+ la_op_st_w = 208,
+ la_op_st_d = 209,
+ la_op_ld_bu = 210,
+ la_op_ld_hu = 211,
+ la_op_ld_wu = 212,
+ la_op_preld = 213,
+ la_op_fld_s = 214,
+ la_op_fst_s = 215,
+ la_op_fld_d = 216,
+ la_op_fst_d = 217,
+ la_op_ldx_b = 218,
+ la_op_ldx_h = 219,
+ la_op_ldx_w = 220,
+ la_op_ldx_d = 221,
+ la_op_stx_b = 222,
+ la_op_stx_h = 223,
+ la_op_stx_w = 224,
+ la_op_stx_d = 225,
+ la_op_ldx_bu = 226,
+ la_op_ldx_hu = 227,
+ la_op_ldx_wu = 228,
+ la_op_fldx_s = 229,
+ la_op_fldx_d = 230,
+ la_op_fstx_s = 231,
+ la_op_fstx_d = 232,
+ la_op_amswap_w = 233,
+ la_op_amswap_d = 234,
+ la_op_amadd_w = 235,
+ la_op_amadd_d = 236,
+ la_op_amand_w = 237,
+ la_op_amand_d = 238,
+ la_op_amor_w = 239,
+ la_op_amor_d = 240,
+ la_op_amxor_w = 241,
+ la_op_amxor_d = 242,
+ la_op_ammax_w = 243,
+ la_op_ammax_d = 244,
+ la_op_ammin_w = 245,
+ la_op_ammin_d = 246,
+ la_op_ammax_wu = 247,
+ la_op_ammax_du = 248,
+ la_op_ammin_wu = 249,
+ la_op_ammin_du = 250,
+ la_op_amswap_db_w = 251,
+ la_op_amswap_db_d = 252,
+ la_op_amadd_db_w = 253,
+ la_op_amadd_db_d = 254,
+ la_op_amand_db_w = 255,
+ la_op_amand_db_d = 256,
+ la_op_amor_db_w = 257,
+ la_op_amor_db_d = 258,
+ la_op_amxor_db_w = 259,
+ la_op_amxor_db_d = 260,
+ la_op_ammax_db_w = 261,
+ la_op_ammax_db_d = 262,
+ la_op_ammin_db_w = 263,
+ la_op_ammin_db_d = 264,
+ la_op_ammax_db_wu = 265,
+ la_op_ammax_db_du = 266,
+ la_op_ammin_db_wu = 267,
+ la_op_ammin_db_du = 268,
+ la_op_dbar = 269,
+ la_op_ibar = 270,
+ la_op_fldgt_s = 271,
+ la_op_fldgt_d = 272,
+ la_op_fldle_s = 273,
+ la_op_fldle_d = 274,
+ la_op_fstgt_s = 275,
+ la_op_fstgt_d = 276,
+ ls_op_fstle_s = 277,
+ la_op_fstle_d = 278,
+ la_op_ldgt_b = 279,
+ la_op_ldgt_h = 280,
+ la_op_ldgt_w = 281,
+ la_op_ldgt_d = 282,
+ la_op_ldle_b = 283,
+ la_op_ldle_h = 284,
+ la_op_ldle_w = 285,
+ la_op_ldle_d = 286,
+ la_op_stgt_b = 287,
+ la_op_stgt_h = 288,
+ la_op_stgt_w = 289,
+ la_op_stgt_d = 290,
+ la_op_stle_b = 291,
+ la_op_stle_h = 292,
+ la_op_stle_w = 293,
+ la_op_stle_d = 294,
+ la_op_beqz = 295,
+ la_op_bnez = 296,
+ la_op_bceqz = 297,
+ la_op_bcnez = 298,
+ la_op_jirl = 299,
+ la_op_b = 300,
+ la_op_bl = 301,
+ la_op_beq = 302,
+ la_op_bne = 303,
+ la_op_blt = 304,
+ la_op_bge = 305,
+ la_op_bltu = 306,
+ la_op_bgeu = 307,
+
+} la_op;
+
+typedef enum {
+ la_codec_illegal,
+ la_codec_empty,
+ la_codec_2r,
+ la_codec_2r_u5,
+ la_codec_2r_u6,
+ la_codec_2r_2bw,
+ la_codec_2r_2bd,
+ la_codec_3r,
+ la_codec_3r_rd0,
+ la_codec_3r_sa2,
+ la_codec_3r_sa3,
+ la_codec_4r,
+ la_codec_r_im20,
+ la_codec_2r_im16,
+ la_codec_2r_im14,
+ la_codec_r_im14,
+ la_codec_2r_im12,
+ la_codec_im5_r_im12,
+ la_codec_2r_im8,
+ la_codec_r_sd,
+ la_codec_r_sj,
+ la_codec_r_cd,
+ la_codec_r_cj,
+ la_codec_r_seq,
+ la_codec_code,
+ la_codec_whint,
+ la_codec_invtlb,
+ la_codec_r_ofs21,
+ la_codec_cj_ofs21,
+ la_codec_ofs26,
+ la_codec_cond,
+ la_codec_sel,
+
+} la_codec;
+
+#define la_fmt_illegal "nte"
+#define la_fmt_empty "nt"
+#define la_fmt_sd_rj "ntA,1"
+#define la_fmt_rd_sj "nt0,B"
+#define la_fmt_rd_rj "nt0,1"
+#define la_fmt_rj_rk "nt1,2"
+#define la_fmt_rj_seq "nt1,x"
+#define la_fmt_rd_si20 "nt0,i(x)"
+#define la_fmt_rd_rj_ui5 "nt0,1,C"
+#define la_fmt_rd_rj_ui6 "nt0,1.C"
+#define la_fmt_rd_rj_level "nt0,1,x"
+#define la_fmt_rd_rj_msbw_lsbw "nt0,1,C,D"
+#define la_fmt_rd_rj_msbd_lsbd "nt0,1,C,D"
+#define la_fmt_rd_rj_si12 "nt0,1,i(x)"
+#define la_fmt_hint_rj_si12 "ntE,1,i(x)"
+#define la_fmt_rd_rj_csr "nt0,1,x"
+#define la_fmt_rd_csr "nt0,x"
+#define la_fmt_rd_rj_si14 "nt0,1,i(x)"
+#define la_fmt_rd_rj_si16 "nt0,1,i(x)"
+#define la_fmt_rd_rj_rk "nt0,1,2"
+#define la_fmt_fd_rj_rk "nt3,1,2"
+#define la_fmt_rd_rj_rk_sa2 "nt0,1,2,D"
+#define la_fmt_rd_rj_rk_sa3 "nt0,1,2,D"
+#define la_fmt_fd_rj "nt3,1"
+#define la_fmt_rd_fj "nt0,4"
+#define la_fmt_fd_fj "nt3,4"
+#define la_fmt_fd_fj_si12 "nt3,4,i(x)"
+#define la_fmt_fcsrd_rj "ntF,1"
+#define la_fmt_rd_fcsrs "nt0,G"
+#define la_fmt_cd_fj "ntH,4"
+#define la_fmt_fd_cj "nt3,I"
+#define la_fmt_fd_fj_fk "nt3,4,5"
+#define la_fmt_code "ntJ"
+#define la_fmt_whint "ntx"
+#define la_fmt_invtlb "ntx,1,2"
+#define la_fmt_offs26 "nto(X)p"
+#define la_fmt_rj_offs21 "nt1,o(X)p"
+#define la_fmt_cj_offs21 "ntQ,o(X)p"
+#define la_fmt_rd_rj_offs16 "nt0,1,o(X)"
+#define la_fmt_rj_rd_offs16 "nt1,0,o(X)p"
+#define la_fmt_s_cd_fj_fk "K.stH,4,5"
+#define la_fmt_d_cd_fj_fk "K.dtH,4,5"
+#define la_fmt_fd_fj_fk_fa "nt3,4,5,6"
+#define la_fmt_fd_fj_fk_ca "nt3,4,5,L"
+#define la_fmt_cop_rj_si12 "ntM,1,i(x)"
+
+/* structures */
+typedef struct {
+ uint32_t pc;
+ uint32_t insn;
+ int32_t imm;
+ int32_t imm2;
+ uint16_t op;
+ uint16_t code;
+ uint8_t codec;
+ uint8_t r1;
+ uint8_t r2;
+ uint8_t r3;
+ uint8_t r4;
+ uint8_t bit;
+} la_decode;
+
+typedef struct {
+ const char * const name;
+ const la_codec codec;
+ const char * const format;
+} la_opcode_data;
+
+/* reg names */
+const char * const loongarch_r_normal_name[32] = {
+ "$r0", "$r1", "$r2", "$r3", "$r4", "$r5", "$r6", "$r7",
+ "$r8", "$r9", "$r10", "$r11", "$r12", "$r13", "$r14", "$r15",
+ "$r16", "$r17", "$r18", "$r19", "$r20", "$r21", "$r22", "$r23",
+ "$r24", "$r25", "$r26", "$r27", "$r28", "$r29", "$r30", "$r31",
+};
+
+const char * const loongarch_f_normal_name[32] = {
+ "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7",
+ "$f8", "$f9", "$f10", "$f11", "$f12", "$f13", "$f14", "$f15",
+ "$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23",
+ "$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30", "$f31",
+};
+
+const char * const loongarch_cr_normal_name[4] = {
+ "$scr0", "$scr1", "$scr2", "$scr3",
+};
+
+const char * const loongarch_c_normal_name[8] = {
+ "$fcc0", "$fcc1", "$fcc2", "$fcc3", "$fcc4", "$fcc5", "$fcc6", "$fcc7",
+};
+
+/* instruction data */
+static const la_opcode_data opcode_data[] = {
+ { "illegal", la_codec_illegal, la_fmt_illegal },
+ { "clo.w", la_codec_2r, la_fmt_rd_rj },
+ { "clz.w", la_codec_2r, la_fmt_rd_rj },
+ { "cto.w", la_codec_2r, la_fmt_rd_rj },
+ { "ctz.w", la_codec_2r, la_fmt_rd_rj },
+ { "clo.d", la_codec_2r, la_fmt_rd_rj },
+ { "clz.d", la_codec_2r, la_fmt_rd_rj },
+ { "cto.d", la_codec_2r, la_fmt_rd_rj },
+ { "ctz_d", la_codec_2r, la_fmt_rd_rj },
+ { "revb.2h", la_codec_2r, la_fmt_rd_rj },
+ { "revb.4h", la_codec_2r, la_fmt_rd_rj },
+ { "revb.2w", la_codec_2r, la_fmt_rd_rj },
+ { "revb.d", la_codec_2r, la_fmt_rd_rj },
+ { "revh.2w", la_codec_2r, la_fmt_rd_rj },
+ { "revh.d", la_codec_2r, la_fmt_rd_rj },
+ { "bitrev.4b", la_codec_2r, la_fmt_rd_rj },
+ { "bitrev.8b", la_codec_2r, la_fmt_rd_rj },
+ { "bitrev.w", la_codec_2r, la_fmt_rd_rj },
+ { "bitrev.d", la_codec_2r, la_fmt_rd_rj },
+ { "ext.w.h", la_codec_2r, la_fmt_rd_rj },
+ { "ext.w.b", la_codec_2r, la_fmt_rd_rj },
+ { "rdtime.d", la_codec_2r, la_fmt_rd_rj },
+ { "cpucfg", la_codec_2r, la_fmt_rd_rj },
+ { "asrtle.d", la_codec_3r_rd0, la_fmt_rj_rk },
+ { "asrtgt.d", la_codec_3r_rd0, la_fmt_rj_rk },
+ { "alsl.w", la_codec_3r_sa2, la_fmt_rd_rj_rk_sa2 },
+ { "alsl.wu", la_codec_3r_sa2, la_fmt_rd_rj_rk_sa2 },
+ { "bytepick.w", la_codec_3r_sa2, la_fmt_rd_rj_rk_sa2 },
+ { "bytepick.d", la_codec_3r_sa3, la_fmt_rd_rj_rk_sa3 },
+ { "add.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "add.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "sub.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "sub.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "slt", la_codec_3r, la_fmt_rd_rj_rk },
+ { "sltu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "maskeqz", la_codec_3r, la_fmt_rd_rj_rk },
+ { "masknez", la_codec_3r, la_fmt_rd_rj_rk },
+ { "nor", la_codec_3r, la_fmt_rd_rj_rk },
+ { "and", la_codec_3r, la_fmt_rd_rj_rk },
+ { "or", la_codec_3r, la_fmt_rd_rj_rk },
+ { "xor", la_codec_3r, la_fmt_rd_rj_rk },
+ { "orn", la_codec_3r, la_fmt_rd_rj_rk },
+ { "andn", la_codec_3r, la_fmt_rd_rj_rk },
+ { "sll.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "srl.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "sra.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "sll.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "srl.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "sra.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "rotr.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "rotr.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mul.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mulh.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mulh.wu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mul.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mulh.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mulh.du", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mulw.d.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mulw.d.wu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "div.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mod.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "div.wu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mod.wu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "div.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mod.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "div.du", la_codec_3r, la_fmt_rd_rj_rk },
+ { "mod.du", la_codec_3r, la_fmt_rd_rj_rk },
+ { "crc.w.b.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "crc.w.h.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "crc.w.w.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "crc.w.d.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "crcc.w.b.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "crcc.w.h.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "crcc.w.w.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "crcc.w.d.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "break", la_codec_code, la_fmt_code },
+ { "syscall", la_codec_code, la_fmt_code },
+ { "alsl.d", la_codec_3r_sa2, la_fmt_rd_rj_rk_sa2 },
+ { "slli.w", la_codec_2r_u5, la_fmt_rd_rj_ui5 },
+ { "slli.d", la_codec_2r_u6, la_fmt_rd_rj_ui6 },
+ { "srli.w", la_codec_2r_u5, la_fmt_rd_rj_ui5 },
+ { "srli.d", la_codec_2r_u6, la_fmt_rd_rj_ui6 },
+ { "srai.w", la_codec_2r_u5, la_fmt_rd_rj_ui5 },
+ { "srai.d", la_codec_2r_u6, la_fmt_rd_rj_ui6 },
+ { "rotri.w", la_codec_2r_u5, la_fmt_rd_rj_ui5 },
+ { "rotri.d", la_codec_2r_u6, la_fmt_rd_rj_ui6 },
+ { "bstrins.w", la_codec_2r_2bw, la_fmt_rd_rj_msbw_lsbw },
+ { "bstrpick.w", la_codec_2r_2bw, la_fmt_rd_rj_msbw_lsbw },
+ { "bstrins.d", la_codec_2r_2bd, la_fmt_rd_rj_msbd_lsbd },
+ { "bstrpick.d", la_codec_2r_2bd, la_fmt_rd_rj_msbd_lsbd },
+ { "fadd.s", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fadd.d", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fsub.s", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fsub.d", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fmul.s", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fmul.d", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fdiv.s", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fdiv.d", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fmax.s", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fmax.d", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fmin.s", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fmin.d", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fmaxa.s", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fmaxa.d", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fmina.s", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fmina.d", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fscaleb.s", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fscaleb.d", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fcopysign.s", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fcopysign.d", la_codec_3r, la_fmt_fd_fj_fk },
+ { "fabs.s", la_codec_2r, la_fmt_fd_fj },
+ { "fabs.d", la_codec_2r, la_fmt_fd_fj },
+ { "fneg.s", la_codec_2r, la_fmt_fd_fj },
+ { "fneg.d", la_codec_2r, la_fmt_fd_fj },
+ { "flogb.s", la_codec_2r, la_fmt_fd_fj },
+ { "flogb.d", la_codec_2r, la_fmt_fd_fj },
+ { "fclass.s", la_codec_2r, la_fmt_fd_fj },
+ { "fclass.d", la_codec_2r, la_fmt_fd_fj },
+ { "fsqrt.s", la_codec_2r, la_fmt_fd_fj },
+ { "fsqrt.d", la_codec_2r, la_fmt_fd_fj },
+ { "frecip.s", la_codec_2r, la_fmt_fd_fj },
+ { "frecip.d", la_codec_2r, la_fmt_fd_fj },
+ { "frsqrt.s", la_codec_2r, la_fmt_fd_fj },
+ { "frsqrt.d", la_codec_2r, la_fmt_fd_fj },
+ { "fmov.s", la_codec_2r, la_fmt_fd_fj },
+ { "fmov.d", la_codec_2r, la_fmt_fd_fj },
+ { "movgr2fr.w", la_codec_2r, la_fmt_fd_rj },
+ { "movgr2fr.d", la_codec_2r, la_fmt_fd_rj },
+ { "movgr2frh.w", la_codec_2r, la_fmt_fd_rj },
+ { "movfr2gr.s", la_codec_2r, la_fmt_rd_fj },
+ { "movfr2gr.d", la_codec_2r, la_fmt_rd_fj },
+ { "movfrh2gr.s", la_codec_2r, la_fmt_rd_fj },
+ { "movgr2fcsr", la_codec_2r, la_fmt_fcsrd_rj },
+ { "movfcsr2gr", la_codec_2r, la_fmt_rd_fcsrs },
+ { "movfr2cf", la_codec_r_cd, la_fmt_cd_fj },
+ { "movcf2fr", la_codec_r_cj, la_fmt_fd_cj },
+ { "movgr2cf", la_codec_r_cd, la_fmt_cd_fj },
+ { "movcf2gr", la_codec_r_cj, la_fmt_fd_cj },
+ { "fcvt.s.d", la_codec_2r, la_fmt_fd_fj },
+ { "fcvt.d.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrm.w.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrm.w.d", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrm.l.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrm.l.d", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrp.w.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrp.w.d", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrp.l.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrp.l.d", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrz.w.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrz.w.d", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrz.l.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrz.l.d", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrne.w.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrne.w.d", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrne.l.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftintrne.l.d", la_codec_2r, la_fmt_fd_fj },
+ { "ftint.w.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftint.w.d", la_codec_2r, la_fmt_fd_fj },
+ { "ftint.l.s", la_codec_2r, la_fmt_fd_fj },
+ { "ftint.l.d", la_codec_2r, la_fmt_fd_fj },
+ { "ffint.s.w", la_codec_2r, la_fmt_fd_fj },
+ { "ffint.s.l", la_codec_2r, la_fmt_fd_fj },
+ { "ffint.d.w", la_codec_2r, la_fmt_fd_fj },
+ { "ffint.d.l", la_codec_2r, la_fmt_fd_fj },
+ { "frint.s", la_codec_2r, la_fmt_fd_fj },
+ { "frint.d", la_codec_2r, la_fmt_fd_fj },
+ { "slti", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "sltui", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "addi.w", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "addi.d", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "lu52i.d", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "addi", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "ori", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "xori", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "rdtimel.w", la_codec_2r, la_fmt_rd_rj },
+ { "rdtimeh.w", la_codec_2r, la_fmt_rd_rj },
+ { "fmadd.s", la_codec_4r, la_fmt_fd_fj_fk_fa },
+ { "fmadd.d", la_codec_4r, la_fmt_fd_fj_fk_fa },
+ { "fmsub.s", la_codec_4r, la_fmt_fd_fj_fk_fa },
+ { "fmsub.d", la_codec_4r, la_fmt_fd_fj_fk_fa },
+ { "fnmadd.s", la_codec_4r, la_fmt_fd_fj_fk_fa },
+ { "fnmadd.d", la_codec_4r, la_fmt_fd_fj_fk_fa },
+ { "fnmsub.s", la_codec_4r, la_fmt_fd_fj_fk_fa },
+ { "fnmsub.d", la_codec_4r, la_fmt_fd_fj_fk_fa },
+ { "fcmp.cond.s", la_codec_cond, la_fmt_s_cd_fj_fk },
+ { "fcmp.cond.d", la_codec_cond, la_fmt_d_cd_fj_fk },
+ { "fsel", la_codec_sel, la_fmt_fd_fj_fk_ca },
+ { "addu16i.d", la_codec_2r_im16, la_fmt_rd_rj_si16 },
+ { "lu12i.w", la_codec_r_im20, la_fmt_rd_si20 },
+ { "lu32i.d", la_codec_r_im20, la_fmt_rd_si20 },
+ { "pcaddi", la_codec_r_im20, la_fmt_rd_si20 },
+ { "pcalau12i", la_codec_r_im20, la_fmt_rd_si20 },
+ { "pcaddu12i", la_codec_r_im20, la_fmt_rd_si20 },
+ { "pcaddu18i", la_codec_r_im20, la_fmt_rd_si20 },
+ { "ll.w", la_codec_2r_im14, la_fmt_rd_rj_si14 },
+ { "sc.w", la_codec_2r_im14, la_fmt_rd_rj_si14 },
+ { "ll.d", la_codec_2r_im14, la_fmt_rd_rj_si14 },
+ { "sc.d", la_codec_2r_im14, la_fmt_rd_rj_si14 },
+ { "ldptr.w", la_codec_2r_im14, la_fmt_rd_rj_si14 },
+ { "stptr.w", la_codec_2r_im14, la_fmt_rd_rj_si14 },
+ { "ldptr.d", la_codec_2r_im14, la_fmt_rd_rj_si14 },
+ { "stptr.d", la_codec_2r_im14, la_fmt_rd_rj_si14 },
+ { "ld.b", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "ld.h", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "ld.w", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "ld.d", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "st.b", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "st.h", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "st.w", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "st.d", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "ld.bu", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "ld.hu", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "ld.wu", la_codec_2r_im12, la_fmt_rd_rj_si12 },
+ { "preld", la_codec_2r_im12, la_fmt_hint_rj_si12 },
+ { "fld.s", la_codec_2r_im12, la_fmt_fd_fj_si12 },
+ { "fst.s", la_codec_2r_im12, la_fmt_fd_fj_si12 },
+ { "fld.d", la_codec_2r_im12, la_fmt_fd_fj_si12 },
+ { "fst.d", la_codec_2r_im12, la_fmt_fd_fj_si12 },
+ { "ldx.b", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldx.h", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldx.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldx.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stx.b", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stx.h", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stx.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stx.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldx.bu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldx.hu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldx.wu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "fldx.s", la_codec_3r, la_fmt_fd_rj_rk },
+ { "fldx.d", la_codec_3r, la_fmt_fd_rj_rk },
+ { "fstx.s", la_codec_3r, la_fmt_fd_rj_rk },
+ { "fstx.d", la_codec_3r, la_fmt_fd_rj_rk },
+ { "amswap.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amswap.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amadd.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amadd.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amand.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amand.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amor.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amor.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amxor.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amxor.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammax.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammax.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammin.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammin.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammax.wu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammax.du", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammin.wu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammin.du", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amswap.db.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amswap.db.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amadd.db.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amadd.db.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amand.db.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amand.db.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amor.db.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amor.db.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amxor.db.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "amxor.db.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammax.db.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammax.db.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammin.db.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammin.db.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammax.db.wu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammax.db.du", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammin.db.wu", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ammin.db.du", la_codec_3r, la_fmt_rd_rj_rk },
+ { "dbar", la_codec_whint, la_fmt_whint },
+ { "ibar", la_codec_whint, la_fmt_whint },
+ { "fldgt.s", la_codec_3r, la_fmt_fd_rj_rk },
+ { "fldgt.d", la_codec_3r, la_fmt_fd_rj_rk },
+ { "fldle.s", la_codec_3r, la_fmt_fd_rj_rk },
+ { "fldle.d", la_codec_3r, la_fmt_fd_rj_rk },
+ { "fstgt.s", la_codec_3r, la_fmt_fd_rj_rk },
+ { "fstgt.d", la_codec_3r, la_fmt_fd_rj_rk },
+ { "fstle.s", la_codec_3r, la_fmt_fd_rj_rk },
+ { "fstle.d", la_codec_3r, la_fmt_fd_rj_rk },
+ { "ldgt.b", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldgt.h", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldgt.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldgt.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldle.b", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldle.h", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldle.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "ldle.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stgt.b", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stgt.h", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stgt.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stgt.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stle.b", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stle.h", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stle.w", la_codec_3r, la_fmt_rd_rj_rk },
+ { "stle.d", la_codec_3r, la_fmt_rd_rj_rk },
+ { "beqz", la_codec_r_ofs21, la_fmt_rj_offs21 },
+ { "bnez", la_codec_r_ofs21, la_fmt_rj_offs21 },
+ { "bceqz", la_codec_cj_ofs21, la_fmt_cj_offs21 },
+ { "bcnez", la_codec_cj_ofs21, la_fmt_cj_offs21 },
+ { "jirl", la_codec_2r_im16, la_fmt_rd_rj_offs16 },
+ { "b", la_codec_ofs26, la_fmt_offs26 },
+ { "bl", la_codec_ofs26, la_fmt_offs26 },
+ { "beq", la_codec_2r_im16, la_fmt_rj_rd_offs16 },
+ { "bne", la_codec_2r_im16, la_fmt_rj_rd_offs16 },
+ { "blt", la_codec_2r_im16, la_fmt_rj_rd_offs16 },
+ { "bge", la_codec_2r_im16, la_fmt_rj_rd_offs16 },
+ { "bltu", la_codec_2r_im16, la_fmt_rj_rd_offs16 },
+ { "bgeu", la_codec_2r_im16, la_fmt_rj_rd_offs16 },
+
+};
+
+
+/* decode opcode */
+static void decode_insn_opcode(la_decode *dec)
+{
+ uint32_t insn = dec->insn;
+ uint16_t op = la_op_illegal;
+ switch ((insn >> 26) & 0x3f) {
+ case 0x0:
+ switch ((insn >> 22) & 0xf) {
+ case 0x0:
+ switch ((insn >> 18) & 0xf) {
+ case 0x0:
+ switch ((insn >> 15) & 0x7) {
+ case 0x0:
+ switch ((insn >> 10) & 0x1f) {
+ case 0x4:
+ op = la_op_clo_w;
+ break;
+ case 0x5:
+ op = la_op_clz_w;
+ break;
+ case 0x6:
+ op = la_op_cto_w;
+ break;
+ case 0x7:
+ op = la_op_ctz_w;
+ break;
+ case 0x8:
+ op = la_op_clo_d;
+ break;
+ case 0x9:
+ op = la_op_clz_d;
+ break;
+ case 0xa:
+ op = la_op_cto_d;
+ break;
+ case 0xb:
+ op = la_op_ctz_d;
+ break;
+ case 0xc:
+ op = la_op_revb_2h;
+ break;
+ case 0xd:
+ op = la_op_revb_4h;
+ break;
+ case 0xe:
+ op = la_op_revb_2w;
+ break;
+ case 0xf:
+ op = la_op_revb_d;
+ break;
+ case 0x10:
+ op = la_op_revh_2w;
+ break;
+ case 0x11:
+ op = la_op_revh_d;
+ break;
+ case 0x12:
+ op = la_op_bitrev_4b;
+ break;
+ case 0x13:
+ op = la_op_bitrev_8b;
+ break;
+ case 0x14:
+ op = la_op_bitrev_w;
+ break;
+ case 0x15:
+ op = la_op_bitrev_d;
+ break;
+ case 0x16:
+ op = la_op_ext_w_h;
+ break;
+ case 0x17:
+ op = la_op_ext_w_b;
+ break;
+ case 0x18:
+ op = la_op_rdtimel_w;
+ break;
+ case 0x19:
+ op = la_op_rdtimeh_w;
+ break;
+ case 0x1a:
+ op = la_op_rdtime_d;
+ break;
+ case 0x1b:
+ op = la_op_cpucfg;
+ break;
+ }
+ break;
+ case 0x2:
+ switch (insn & 0x0000001f) {
+ case 0x00000000:
+ op = la_op_asrtle_d;
+ break;
+ }
+ break;
+ case 0x3:
+ switch (insn & 0x0000001f) {
+ case 0x00000000:
+ op = la_op_asrtgt_d;
+ break;
+ }
+ break;
+ }
+ break;
+ case 0x1:
+ switch ((insn >> 17) & 0x1) {
+ case 0x0:
+ op = la_op_alsl_w;
+ break;
+ case 0x1:
+ op = la_op_alsl_wu;
+ break;
+ }
+ break;
+ case 0x2:
+ switch ((insn >> 17) & 0x1) {
+ case 0x0:
+ op = la_op_bytepick_w;
+ break;
+ }
+ break;
+ case 0x3:
+ op = la_op_bytepick_d;
+ break;
+ case 0x4:
+ switch ((insn >> 15) & 0x7) {
+ case 0x0:
+ op = la_op_add_w;
+ break;
+ case 0x1:
+ op = la_op_add_d;
+ break;
+ case 0x2:
+ op = la_op_sub_w;
+ break;
+ case 0x3:
+ op = la_op_sub_d;
+ break;
+ case 0x4:
+ op = la_op_slt;
+ break;
+ case 0x5:
+ op = la_op_sltu;
+ break;
+ case 0x6:
+ op = la_op_maskeqz;
+ break;
+ case 0x7:
+ op = la_op_masknez;
+ break;
+ }
+ break;
+ case 0x5:
+ switch ((insn >> 15) & 0x7) {
+ case 0x0:
+ op = la_op_nor;
+ break;
+ case 0x1:
+ op = la_op_and;
+ break;
+ case 0x2:
+ op = la_op_or;
+ break;
+ case 0x3:
+ op = la_op_xor;
+ break;
+ case 0x4:
+ op = la_op_orn;
+ break;
+ case 0x5:
+ op = la_op_andn;
+ break;
+ case 0x6:
+ op = la_op_sll_w;
+ break;
+ case 0x7:
+ op = la_op_srl_w;
+ break;
+ }
+ break;
+ case 0x6:
+ switch ((insn >> 15) & 0x7) {
+ case 0x0:
+ op = la_op_sra_w;
+ break;
+ case 0x1:
+ op = la_op_sll_d;
+ break;
+ case 0x2:
+ op = la_op_srl_d;
+ break;
+ case 0x3:
+ op = la_op_sra_d;
+ break;
+ case 0x6:
+ op = la_op_rotr_w;
+ break;
+ case 0x7:
+ op = la_op_rotr_d;
+ break;
+ }
+ break;
+ case 0x7:
+ switch ((insn >> 15) & 0x7) {
+ case 0x0:
+ op = la_op_mul_w;
+ break;
+ case 0x1:
+ op = la_op_mulh_w;
+ break;
+ case 0x2:
+ op = la_op_mulh_wu;
+ break;
+ case 0x3:
+ op = la_op_mul_d;
+ break;
+ case 0x4:
+ op = la_op_mulh_d;
+ break;
+ case 0x5:
+ op = la_op_mulh_du;
+ break;
+ case 0x6:
+ op = la_op_mulw_d_w;
+ break;
+ case 0x7:
+ op = la_op_mulw_d_wu;
+ break;
+ }
+ break;
+ case 0x8:
+ switch ((insn >> 15) & 0x7) {
+ case 0x0:
+ op = la_op_div_w;
+ break;
+ case 0x1:
+ op = la_op_mod_w;
+ break;
+ case 0x2:
+ op = la_op_div_wu;
+ break;
+ case 0x3:
+ op = la_op_mod_wu;
+ break;
+ case 0x4:
+ op = la_op_div_d;
+ break;
+ case 0x5:
+ op = la_op_mod_d;
+ break;
+ case 0x6:
+ op = la_op_div_du;
+ break;
+ case 0x7:
+ op = la_op_mod_du;
+ break;
+ }
+ break;
+ case 0x9:
+ switch ((insn >> 15) & 0x7) {
+ case 0x0:
+ op = la_op_crc_w_b_w;
+ break;
+ case 0x1:
+ op = la_op_crc_w_h_w;
+ break;
+ case 0x2:
+ op = la_op_crc_w_w_w;
+ break;
+ case 0x3:
+ op = la_op_crc_w_d_w;
+ break;
+ case 0x4:
+ op = la_op_crcc_w_b_w;
+ break;
+ case 0x5:
+ op = la_op_crcc_w_h_w;
+ break;
+ case 0x6:
+ op = la_op_crcc_w_w_w;
+ break;
+ case 0x7:
+ op = la_op_crcc_w_d_w;
+ break;
+ }
+ break;
+ case 0xa:
+ switch ((insn >> 15) & 0x7) {
+ case 0x4:
+ op = la_op_break;
+ break;
+ case 0x6:
+ op = la_op_syscall;
+ break;
+ }
+ break;
+ case 0xb:
+ switch ((insn >> 17) & 0x1) {
+ case 0x0:
+ op = la_op_alsl_d;
+ break;
+ }
+ break;
+ }
+ break;
+ case 0x1:
+ switch ((insn >> 21) & 0x1) {
+ case 0x0:
+ switch ((insn >> 16) & 0x1f) {
+ case 0x0:
+ switch ((insn >> 15) & 0x1) {
+ case 0x1:
+ op = la_op_slli_w;
+ break;
+ }
+ break;
+ case 0x1:
+ op = la_op_slli_d;
+ break;
+ case 0x4:
+ switch ((insn >> 15) & 0x1) {
+ case 0x1:
+ op = la_op_srli_w;
+ break;
+ }
+ break;
+ case 0x5:
+ op = la_op_srli_d;
+ break;
+ case 0x8:
+ switch ((insn >> 15) & 0x1) {
+ case 0x1:
+ op = la_op_srai_w;
+ break;
+ }
+ break;
+ case 0x9:
+ op = la_op_srai_d;
+ break;
+ case 0xc:
+ switch ((insn >> 15) & 0x1) {
+ case 0x1:
+ op = la_op_rotri_w;
+ break;
+ }
+ break;
+ case 0xd:
+ op = la_op_rotri_d;
+ break;
+ }
+ break;
+ case 0x1:
+ switch ((insn >> 15) & 0x1) {
+ case 0x0:
+ op = la_op_bstrins_w;
+ break;
+ case 0x1:
+ op = la_op_bstrpick_w;
+ break;
+ }
+ break;
+ }
+ break;
+ case 0x2:
+ op = la_op_bstrins_d;
+ break;
+ case 0x3:
+ op = la_op_bstrpick_d;
+ break;
+ case 0x4:
+ switch ((insn >> 15) & 0x7f) {
+ case 0x1:
+ op = la_op_fadd_s;
+ break;
+ case 0x2:
+ op = la_op_fadd_d;
+ break;
+ case 0x5:
+ op = la_op_fsub_s;
+ break;
+ case 0x6:
+ op = la_op_fsub_d;
+ break;
+ case 0x9:
+ op = la_op_fmul_s;
+ break;
+ case 0xa:
+ op = la_op_fmul_d;
+ break;
+ case 0xd:
+ op = la_op_fdiv_s;
+ break;
+ case 0xe:
+ op = la_op_fdiv_d;
+ break;
+ case 0x11:
+ op = la_op_fmax_s;
+ break;
+ case 0x12:
+ op = la_op_fmax_d;
+ break;
+ case 0x15:
+ op = la_op_fmin_s;
+ break;
+ case 0x16:
+ op = la_op_fmin_d;
+ break;
+ case 0x19:
+ op = la_op_fmaxa_s;
+ break;
+ case 0x1a:
+ op = la_op_fmaxa_d;
+ break;
+ case 0x1d:
+ op = la_op_fmina_s;
+ break;
+ case 0x1e:
+ op = la_op_fmina_d;
+ break;
+ case 0x21:
+ op = la_op_fscaleb_s;
+ break;
+ case 0x22:
+ op = la_op_fscaleb_d;
+ break;
+ case 0x25:
+ op = la_op_fcopysign_s;
+ break;
+ case 0x26:
+ op = la_op_fcopysign_d;
+ break;
+ case 0x28:
+ switch ((insn >> 10) & 0x1f) {
+ case 0x1:
+ op = la_op_fabs_s;
+ break;
+ case 0x2:
+ op = la_op_fabs_d;
+ break;
+ case 0x5:
+ op = la_op_fneg_s;
+ break;
+ case 0x6:
+ op = la_op_fneg_d;
+ break;
+ case 0x9:
+ op = la_op_flogb_s;
+ break;
+ case 0xa:
+ op = la_op_flogb_d;
+ break;
+ case 0xd:
+ op = la_op_fclass_s;
+ break;
+ case 0xe:
+ op = la_op_fclass_d;
+ break;
+ case 0x11:
+ op = la_op_fsqrt_s;
+ break;
+ case 0x12:
+ op = la_op_fsqrt_d;
+ break;
+ case 0x15:
+ op = la_op_frecip_s;
+ break;
+ case 0x16:
+ op = la_op_frecip_d;
+ break;
+ case 0x19:
+ op = la_op_frsqrt_s;
+ break;
+ case 0x1a:
+ op = la_op_frsqrt_d;
+ break;
+ }
+ break;
+ case 0x29:
+ switch ((insn >> 10) & 0x1f) {
+ case 0x5:
+ op = la_op_fmov_s;
+ break;
+ case 0x6:
+ op = la_op_fmov_d;
+ break;
+ case 0x9:
+ op = la_op_movgr2fr_w;
+ break;
+ case 0xa:
+ op = la_op_movgr2fr_d;
+ break;
+ case 0xb:
+ op = la_op_movgr2frh_w;
+ break;
+ case 0xd:
+ op = la_op_movfr2gr_s;
+ break;
+ case 0xe:
+ op = la_op_movfr2gr_d;
+ break;
+ case 0xf:
+ op = la_op_movfrh2gr_s;
+ break;
+ case 0x10:
+ op = la_op_movgr2fcsr;
+ break;
+ case 0x12:
+ op = la_op_movfcsr2gr;
+ break;
+ case 0x14:
+ switch ((insn >> 3) & 0x3) {
+ case 0x0:
+ op = la_op_movfr2cf;
+ break;
+ }
+ break;
+ case 0x15:
+ switch ((insn >> 8) & 0x3) {
+ case 0x0:
+ op = la_op_movcf2fr;
+ break;
+ }
+ break;
+ case 0x16:
+ switch ((insn >> 3) & 0x3) {
+ case 0x0:
+ op = la_op_movgr2cf;
+ break;
+ }
+ break;
+ case 0x17:
+ switch ((insn >> 8) & 0x3) {
+ case 0x0:
+ op = la_op_movcf2gr;
+ break;
+ }
+ break;
+ }
+ break;
+ case 0x32:
+ switch ((insn >> 10) & 0x1f) {
+ case 0x6:
+ op = la_op_fcvt_s_d;
+ break;
+ case 0x9:
+ op = la_op_fcvt_d_s;
+ break;
+ }
+ break;
+ case 0x34:
+ switch ((insn >> 10) & 0x1f) {
+ case 0x1:
+ op = la_op_ftintrm_w_s;
+ break;
+ case 0x2:
+ op = la_op_ftintrm_w_d;
+ break;
+ case 0x9:
+ op = la_op_ftintrm_l_s;
+ break;
+ case 0xa:
+ op = la_op_ftintrm_l_d;
+ break;
+ case 0x11:
+ op = la_op_ftintrp_w_s;
+ break;
+ case 0x12:
+ op = la_op_ftintrp_w_d;
+ break;
+ case 0x19:
+ op = la_op_ftintrp_l_s;
+ break;
+ case 0x1a:
+ op = la_op_ftintrp_l_d;
+ break;
+ }
+ break;
+ case 0x35:
+ switch ((insn >> 10) & 0x1f) {
+ case 0x1:
+ op = la_op_ftintrz_w_s;
+ break;
+ case 0x2:
+ op = la_op_ftintrz_w_d;
+ break;
+ case 0x9:
+ op = la_op_ftintrz_l_s;
+ break;
+ case 0xa:
+ op = la_op_ftintrz_l_d;
+ break;
+ case 0x11:
+ op = la_op_ftintrne_w_s;
+ break;
+ case 0x12:
+ op = la_op_ftintrne_w_d;
+ break;
+ case 0x19:
+ op = la_op_ftintrne_l_s;
+ break;
+ case 0x1a:
+ op = la_op_ftintrne_l_d;
+ break;
+ }
+ break;
+ case 0x36:
+ switch ((insn >> 10) & 0x1f) {
+ case 0x1:
+ op = la_op_ftint_w_s;
+ break;
+ case 0x2:
+ op = la_op_ftint_w_d;
+ break;
+ case 0x9:
+ op = la_op_ftint_l_s;
+ break;
+ case 0xa:
+ op = la_op_ftint_l_d;
+ break;
+ }
+ break;
+ case 0x3a:
+ switch ((insn >> 10) & 0x1f) {
+ case 0x4:
+ op = la_op_ffint_s_w;
+ break;
+ case 0x6:
+ op = la_op_ffint_s_l;
+ break;
+ case 0x8:
+ op = la_op_ffint_d_w;
+ break;
+ case 0xa:
+ op = la_op_ffint_d_l;
+ break;
+ }
+ break;
+ case 0x3c:
+ switch ((insn >> 10) & 0x1f) {
+ case 0x11:
+ op = la_op_frint_s;
+ break;
+ case 0x12:
+ op = la_op_frint_d;
+ break;
+ }
+ break;
+ }
+ break;
+ case 0x8:
+ op = la_op_slti;
+ break;
+ case 0x9:
+ op = la_op_sltui;
+ break;
+ case 0xa:
+ op = la_op_addi_w;
+ break;
+ case 0xb:
+ op = la_op_addi_d;
+ break;
+ case 0xc:
+ op = la_op_lu52i_d;
+ break;
+ case 0xd:
+ op = la_op_addi;
+ break;
+ case 0xe:
+ op = la_op_ori;
+ break;
+ case 0xf:
+ op = la_op_xori;
+ break;
+ }
+ break;
+ case 0x2:
+ switch ((insn >> 20) & 0x3f) {
+ case 0x1:
+ op = la_op_fmadd_s;
+ break;
+ case 0x2:
+ op = la_op_fmadd_d;
+ break;
+ case 0x5:
+ op = la_op_fmsub_s;
+ break;
+ case 0x6:
+ op = la_op_fmsub_d;
+ break;
+ case 0x9:
+ op = la_op_fnmadd_s;
+ break;
+ case 0xa:
+ op = la_op_fnmadd_d;
+ break;
+ case 0xd:
+ op = la_op_fnmsub_s;
+ break;
+ case 0xe:
+ op = la_op_fnmsub_d;
+ break;
+ }
+ break;
+ case 0x3:
+ switch ((insn >> 20) & 0x3f) {
+ case 0x1:
+ switch ((insn >> 3) & 0x3) {
+ case 0x0:
+ op = la_op_fcmp_cond_s;
+ break;
+ }
+ break;
+ case 0x2:
+ switch ((insn >> 3) & 0x3) {
+ case 0x0:
+ op = la_op_fcmp_cond_d;
+ break;
+ }
+ break;
+ case 0x10:
+ switch ((insn >> 18) & 0x3) {
+ case 0x0:
+ op = la_op_fsel;
+ break;
+ }
+ break;
+ }
+ break;
+ case 0x4:
+ op = la_op_addu16i_d;
+ break;
+ case 0x5:
+ switch ((insn >> 25) & 0x1) {
+ case 0x0:
+ op = la_op_lu12i_w;
+ break;
+ case 0x1:
+ op = la_op_lu32i_d;
+ break;
+ }
+ break;
+ case 0x6:
+ switch ((insn >> 25) & 0x1) {
+ case 0x0:
+ op = la_op_pcaddi;
+ break;
+ case 0x1:
+ op = la_op_pcalau12i;
+ break;
+ }
+ break;
+ case 0x7:
+ switch ((insn >> 25) & 0x1) {
+ case 0x0:
+ op = la_op_pcaddu12i;
+ break;
+ case 0x1:
+ op = la_op_pcaddu18i;
+ break;
+ }
+ break;
+ case 0x8:
+ switch ((insn >> 24) & 0x3) {
+ case 0x0:
+ op = la_op_ll_w;
+ break;
+ case 0x1:
+ op = la_op_sc_w;
+ break;
+ case 0x2:
+ op = la_op_ll_d;
+ break;
+ case 0x3:
+ op = la_op_sc_d;
+ break;
+ }
+ break;
+ case 0x9:
+ switch ((insn >> 24) & 0x3) {
+ case 0x0:
+ op = la_op_ldptr_w;
+ break;
+ case 0x1:
+ op = la_op_stptr_w;
+ break;
+ case 0x2:
+ op = la_op_ldptr_d;
+ break;
+ case 0x3:
+ op = la_op_stptr_d;
+ break;
+ }
+ break;
+ case 0xa:
+ switch ((insn >> 22) & 0xf) {
+ case 0x0:
+ op = la_op_ld_b;
+ break;
+ case 0x1:
+ op = la_op_ld_h;
+ break;
+ case 0x2:
+ op = la_op_ld_w;
+ break;
+ case 0x3:
+ op = la_op_ld_d;
+ break;
+ case 0x4:
+ op = la_op_st_b;
+ break;
+ case 0x5:
+ op = la_op_st_h;
+ break;
+ case 0x6:
+ op = la_op_st_w;
+ break;
+ case 0x7:
+ op = la_op_st_d;
+ break;
+ case 0x8:
+ op = la_op_ld_bu;
+ break;
+ case 0x9:
+ op = la_op_ld_hu;
+ break;
+ case 0xa:
+ op = la_op_ld_wu;
+ break;
+ case 0xb:
+ op = la_op_preld;
+ break;
+ case 0xc:
+ op = la_op_fld_s;
+ break;
+ case 0xd:
+ op = la_op_fst_s;
+ break;
+ case 0xe:
+ op = la_op_fld_d;
+ break;
+ case 0xf:
+ op = la_op_fst_d;
+ break;
+ }
+ break;
+ case 0xe:
+ switch ((insn >> 15) & 0x7ff) {
+ case 0x0:
+ op = la_op_ldx_b;
+ break;
+ case 0x8:
+ op = la_op_ldx_h;
+ break;
+ case 0x10:
+ op = la_op_ldx_w;
+ break;
+ case 0x18:
+ op = la_op_ldx_d;
+ break;
+ case 0x20:
+ op = la_op_stx_b;
+ break;
+ case 0x28:
+ op = la_op_stx_h;
+ break;
+ case 0x30:
+ op = la_op_stx_w;
+ break;
+ case 0x38:
+ op = la_op_stx_d;
+ break;
+ case 0x40:
+ op = la_op_ldx_bu;
+ break;
+ case 0x48:
+ op = la_op_ldx_hu;
+ break;
+ case 0x50:
+ op = la_op_ldx_wu;
+ break;
+ case 0x60:
+ op = la_op_fldx_s;
+ break;
+ case 0x68:
+ op = la_op_fldx_d;
+ break;
+ case 0x70:
+ op = la_op_fstx_s;
+ break;
+ case 0x78:
+ op = la_op_fstx_d;
+ break;
+ case 0xc0:
+ op = la_op_amswap_w;
+ break;
+ case 0xc1:
+ op = la_op_amswap_d;
+ break;
+ case 0xc2:
+ op = la_op_amadd_w;
+ break;
+ case 0xc3:
+ op = la_op_amadd_d;
+ break;
+ case 0xc4:
+ op = la_op_amand_w;
+ break;
+ case 0xc5:
+ op = la_op_amand_d;
+ break;
+ case 0xc6:
+ op = la_op_amor_w;
+ break;
+ case 0xc7:
+ op = la_op_amor_d;
+ break;
+ case 0xc8:
+ op = la_op_amxor_w;
+ break;
+ case 0xc9:
+ op = la_op_amxor_d;
+ break;
+ case 0xca:
+ op = la_op_ammax_w;
+ break;
+ case 0xcb:
+ op = la_op_ammax_d;
+ break;
+ case 0xcc:
+ op = la_op_ammin_w;
+ break;
+ case 0xcd:
+ op = la_op_ammin_d;
+ break;
+ case 0xce:
+ op = la_op_ammax_wu;
+ break;
+ case 0xcf:
+ op = la_op_ammax_du;
+ break;
+ case 0xd0:
+ op = la_op_ammin_wu;
+ break;
+ case 0xd1:
+ op = la_op_ammin_du;
+ break;
+ case 0xd2:
+ op = la_op_amswap_db_w;
+ break;
+ case 0xd3:
+ op = la_op_amswap_db_d;
+ break;
+ case 0xd4:
+ op = la_op_amadd_db_w;
+ break;
+ case 0xd5:
+ op = la_op_amadd_db_d;
+ break;
+ case 0xd6:
+ op = la_op_amand_db_w;
+ break;
+ case 0xd7:
+ op = la_op_amand_db_d;
+ break;
+ case 0xd8:
+ op = la_op_amor_db_w;
+ break;
+ case 0xd9:
+ op = la_op_amor_db_d;
+ break;
+ case 0xda:
+ op = la_op_amxor_db_w;
+ break;
+ case 0xdb:
+ op = la_op_amxor_db_d;
+ break;
+ case 0xdc:
+ op = la_op_ammax_db_w;
+ break;
+ case 0xdd:
+ op = la_op_ammax_db_d;
+ break;
+ case 0xde:
+ op = la_op_ammin_db_w;
+ break;
+ case 0xdf:
+ op = la_op_ammin_db_d;
+ break;
+ case 0xe0:
+ op = la_op_ammax_db_wu;
+ break;
+ case 0xe1:
+ op = la_op_ammax_db_du;
+ break;
+ case 0xe2:
+ op = la_op_ammin_db_wu;
+ break;
+ case 0xe3:
+ op = la_op_ammin_db_du;
+ break;
+ case 0xe4:
+ op = la_op_dbar;
+ break;
+ case 0xe5:
+ op = la_op_ibar;
+ break;
+ case 0xe8:
+ op = la_op_fldgt_s;
+ break;
+ case 0xe9:
+ op = la_op_fldgt_d;
+ break;
+ case 0xea:
+ op = la_op_fldle_s;
+ break;
+ case 0xeb:
+ op = la_op_fldle_d;
+ break;
+ case 0xec:
+ op = la_op_fstgt_s;
+ break;
+ case 0xed:
+ op = la_op_fstgt_d;
+ break;
+ case 0xee:
+ op = ls_op_fstle_s;
+ break;
+ case 0xef:
+ op = la_op_fstle_d;
+ break;
+ case 0xf0:
+ op = la_op_ldgt_b;
+ break;
+ case 0xf1:
+ op = la_op_ldgt_h;
+ break;
+ case 0xf2:
+ op = la_op_ldgt_w;
+ break;
+ case 0xf3:
+ op = la_op_ldgt_d;
+ break;
+ case 0xf4:
+ op = la_op_ldle_b;
+ break;
+ case 0xf5:
+ op = la_op_ldle_h;
+ break;
+ case 0xf6:
+ op = la_op_ldle_w;
+ break;
+ case 0xf7:
+ op = la_op_ldle_d;
+ break;
+ case 0xf8:
+ op = la_op_stgt_b;
+ break;
+ case 0xf9:
+ op = la_op_stgt_h;
+ break;
+ case 0xfa:
+ op = la_op_stgt_w;
+ break;
+ case 0xfb:
+ op = la_op_stgt_d;
+ break;
+ case 0xfc:
+ op = la_op_stle_b;
+ break;
+ case 0xfd:
+ op = la_op_stle_h;
+ break;
+ case 0xfe:
+ op = la_op_stle_w;
+ break;
+ case 0xff:
+ op = la_op_stle_d;
+ break;
+ }
+ break;
+ case 0x10:
+ op = la_op_beqz;
+ break;
+ case 0x11:
+ op = la_op_bnez;
+ break;
+ case 0x12:
+ switch ((insn >> 8) & 0x3) {
+ case 0x0:
+ op = la_op_bceqz;
+ break;
+ case 0x1:
+ op = la_op_bcnez;
+ break;
+ }
+ break;
+ case 0x13:
+ op = la_op_jirl;
+ break;
+ case 0x14:
+ op = la_op_b;
+ break;
+ case 0x15:
+ op = la_op_bl;
+ break;
+ case 0x16:
+ op = la_op_beq;
+ break;
+ case 0x17:
+ op = la_op_bne;
+ break;
+ case 0x18:
+ op = la_op_blt;
+ break;
+ case 0x19:
+ op = la_op_bge;
+ break;
+ case 0x1a:
+ op = la_op_bltu;
+ break;
+ case 0x1b:
+ op = la_op_bgeu;
+ break;
+ default:
+ op = la_op_illegal;
+ break;
+ }
+ dec->op = op;
+}
+
+/* operand extractors */
+#define IM_5 5
+#define IM_8 8
+#define IM_12 12
+#define IM_14 14
+#define IM_15 15
+#define IM_16 16
+#define IM_20 20
+#define IM_21 21
+#define IM_26 26
+
+static uint32_t operand_r1(uint32_t insn)
+{
+ return insn & 0x1f;
+}
+
+static uint32_t operand_r2(uint32_t insn)
+{
+ return (insn >> 5) & 0x1f;
+}
+
+static uint32_t operand_r3(uint32_t insn)
+{
+ return (insn >> 10) & 0x1f;
+}
+
+static uint32_t operand_r4(uint32_t insn)
+{
+ return (insn >> 15) & 0x1f;
+}
+
+static uint32_t operand_u6(uint32_t insn)
+{
+ return (insn >> 10) & 0x3f;
+}
+
+static uint32_t operand_bw1(uint32_t insn)
+{
+ return (insn >> 10) & 0x1f;
+}
+
+static uint32_t operand_bw2(uint32_t insn)
+{
+ return (insn >> 16) & 0x1f;
+}
+
+static uint32_t operand_bd1(uint32_t insn)
+{
+ return (insn >> 10) & 0x3f;
+}
+
+static uint32_t operand_bd2(uint32_t insn)
+{
+ return (insn >> 16) & 0x3f;
+}
+
+static uint32_t operand_sa2(uint32_t insn)
+{
+ return (insn >> 15) & 0x3;
+}
+
+static uint32_t operand_sa3(uint32_t insn)
+{
+ return (insn >> 15) & 0x3;
+}
+
+static int32_t operand_im20(uint32_t insn)
+{
+ int32_t imm = (int32_t)((insn >> 5) & 0xfffff);
+ return imm > (1 << 19) ? imm - (1 << 20) : imm;
+}
+
+static int32_t operand_im16(uint32_t insn)
+{
+ int32_t imm = (int32_t)((insn >> 10) & 0xffff);
+ return imm > (1 << 15) ? imm - (1 << 16) : imm;
+}
+
+static int32_t operand_im14(uint32_t insn)
+{
+ int32_t imm = (int32_t)((insn >> 10) & 0x3fff);
+ return imm > (1 << 13) ? imm - (1 << 14) : imm;
+}
+
+static int32_t operand_im12(uint32_t insn)
+{
+ int32_t imm = (int32_t)((insn >> 10) & 0xfff);
+ return imm > (1 << 11) ? imm - (1 << 12) : imm;
+}
+
+static int32_t operand_im8(uint32_t insn)
+{
+ int32_t imm = (int32_t)((insn >> 10) & 0xff);
+ return imm > (1 << 7) ? imm - (1 << 8) : imm;
+}
+
+static uint32_t operand_sd(uint32_t insn)
+{
+ return insn & 0x3;
+}
+
+static uint32_t operand_sj(uint32_t insn)
+{
+ return (insn >> 5) & 0x3;
+}
+
+static uint32_t operand_cd(uint32_t insn)
+{
+ return insn & 0x7;
+}
+
+static uint32_t operand_cj(uint32_t insn)
+{
+ return (insn >> 5) & 0x7;
+}
+
+static uint32_t operand_code(uint32_t insn)
+{
+ return insn & 0x7fff;
+}
+
+static int32_t operand_whint(uint32_t insn)
+{
+ int32_t imm = (int32_t)(insn & 0x7fff);
+ return imm > (1 << 14) ? imm - (1 << 15) : imm;
+}
+
+static int32_t operand_invop(uint32_t insn)
+{
+ int32_t imm = (int32_t)(insn & 0x1f);
+ return imm > (1 << 4) ? imm - (1 << 5) : imm;
+}
+
+static int32_t operand_ofs21(uint32_t insn)
+{
+ int32_t imm = (((int32_t)insn & 0x1f) << 16) |
+ ((insn >> 10) & 0xffff);
+ return imm > (1 << 20) ? imm - (1 << 21) : imm;
+}
+
+static int32_t operand_ofs26(uint32_t insn)
+{
+ int32_t imm = (((int32_t)insn & 0x3ff) << 16) |
+ ((insn >> 10) & 0xffff);
+ return imm > (1 << 25) ? imm - (1 << 26) : imm;
+}
+
+static uint32_t operand_fcond(uint32_t insn)
+{
+ return (insn >> 15) & 0x1f;
+}
+
+static uint32_t operand_sel(uint32_t insn)
+{
+ return (insn >> 15) & 0x7;
+}
+
+/* decode operands */
+static void decode_insn_operands(la_decode *dec)
+{
+ uint32_t insn = dec->insn;
+ dec->codec = opcode_data[dec->op].codec;
+ switch (dec->codec) {
+ case la_codec_illegal:
+ case la_codec_empty:
+ break;
+ case la_codec_2r:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ break;
+ case la_codec_2r_u5:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_r3(insn);
+ break;
+ case la_codec_2r_u6:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_u6(insn);
+ break;
+ case la_codec_2r_2bw:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_bw1(insn);
+ dec->r4 = operand_bw2(insn);
+ break;
+ case la_codec_2r_2bd:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_bd1(insn);
+ dec->r4 = operand_bd2(insn);
+ break;
+ case la_codec_3r:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_r3(insn);
+ break;
+ case la_codec_3r_rd0:
+ dec->r1 = 0;
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_r3(insn);
+ break;
+ case la_codec_3r_sa2:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_r3(insn);
+ dec->r4 = operand_sa2(insn);
+ break;
+ case la_codec_3r_sa3:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_r3(insn);
+ dec->r4 = operand_sa3(insn);
+ break;
+ case la_codec_4r:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_r3(insn);
+ dec->r4 = operand_r4(insn);
+ break;
+ case la_codec_r_im20:
+ dec->r1 = operand_r1(insn);
+ dec->imm = operand_im20(insn);
+ dec->bit = IM_20;
+ break;
+ case la_codec_2r_im16:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->imm = operand_im16(insn);
+ dec->bit = IM_16;
+ break;
+ case la_codec_2r_im14:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->imm = operand_im14(insn);
+ dec->bit = IM_14;
+ break;
+ case la_codec_r_im14:
+ dec->r1 = operand_r1(insn);
+ dec->imm = operand_im14(insn);
+ dec->bit = IM_14;
+ break;
+ case la_codec_im5_r_im12:
+ dec->imm2 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->imm = operand_im12(insn);
+ dec->bit = IM_12;
+ break;
+ case la_codec_2r_im12:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->imm = operand_im12(insn);
+ dec->bit = IM_12;
+ break;
+ case la_codec_2r_im8:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->imm = operand_im8(insn);
+ dec->bit = IM_8;
+ break;
+ case la_codec_r_sd:
+ dec->r1 = operand_sd(insn);
+ dec->r2 = operand_r2(insn);
+ break;
+ case la_codec_r_sj:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_sj(insn);
+ break;
+ case la_codec_r_cd:
+ dec->r1 = operand_cd(insn);
+ dec->r2 = operand_r2(insn);
+ break;
+ case la_codec_r_cj:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_cj(insn);
+ break;
+ case la_codec_r_seq:
+ dec->r1 = 0;
+ dec->r2 = operand_r1(insn);
+ dec->imm = operand_im8(insn);
+ dec->bit = IM_8;
+ break;
+ case la_codec_code:
+ dec->code = operand_code(insn);
+ break;
+ case la_codec_whint:
+ dec->imm = operand_whint(insn);
+ dec->bit = IM_15;
+ break;
+ case la_codec_invtlb:
+ dec->imm = operand_invop(insn);
+ dec->bit = IM_5;
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_r3(insn);
+ break;
+ case la_codec_r_ofs21:
+ dec->imm = operand_ofs21(insn);
+ dec->bit = IM_21;
+ dec->r2 = operand_r2(insn);
+ break;
+ case la_codec_cj_ofs21:
+ dec->imm = operand_ofs21(insn);
+ dec->bit = IM_21;
+ dec->r2 = operand_cj(insn);
+ break;
+ case la_codec_ofs26:
+ dec->imm = operand_ofs26(insn);
+ dec->bit = IM_26;
+ break;
+ case la_codec_cond:
+ dec->r1 = operand_cd(insn);
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_r3(insn);
+ dec->r4 = operand_fcond(insn);
+ break;
+ case la_codec_sel:
+ dec->r1 = operand_r1(insn);
+ dec->r2 = operand_r2(insn);
+ dec->r3 = operand_r3(insn);
+ dec->r4 = operand_sel(insn);
+ break;
+ }
+}
+
+/* format instruction */
+static void append(char *s1, const char *s2, size_t n)
+{
+ size_t l1 = strlen(s1);
+ if (n - l1 - 1 > 0) {
+ strncat(s1, s2, n - l1);
+ }
+}
+
+static void format_insn(char *buf, size_t buflen, size_t tab, la_decode *dec)
+{
+ char tmp[16];
+ const char *fmt;
+
+ fmt = opcode_data[dec->op].format;
+ while (*fmt) {
+ switch (*fmt) {
+ case 'n': /* name */
+ append(buf, opcode_data[dec->op].name, buflen);
+ break;
+ case 's':
+ append(buf, "s", buflen);
+ break;
+ case 'd':
+ append(buf, "d", buflen);
+ break;
+ case 'e': /* illegal */
+ snprintf(tmp, sizeof(tmp), "%x", dec->insn);
+ append(buf, tmp, buflen);
+ break;
+ case 't':
+ while (strlen(buf) < tab) {
+ append(buf, " ", buflen);
+ }
+ break;
+ case '(':
+ append(buf, "(", buflen);
+ break;
+ case ',':
+ append(buf, ",", buflen);
+ break;
+ case '.':
+ append(buf, ".", buflen);
+ break;
+ case ')':
+ append(buf, ")", buflen);
+ break;
+ case '0': /* rd */
+ append(buf, loongarch_r_normal_name[dec->r1], buflen);
+ break;
+ case '1': /* rj */
+ append(buf, loongarch_r_normal_name[dec->r2], buflen);
+ break;
+ case '2': /* rk */
+ append(buf, loongarch_r_normal_name[dec->r3], buflen);
+ break;
+ case '3': /* fd */
+ append(buf, loongarch_f_normal_name[dec->r1], buflen);
+ break;
+ case '4': /* fj */
+ append(buf, loongarch_f_normal_name[dec->r2], buflen);
+ break;
+ case '5': /* fk */
+ append(buf, loongarch_f_normal_name[dec->r3], buflen);
+ break;
+ case '6': /* fa */
+ append(buf, loongarch_f_normal_name[dec->r4], buflen);
+ break;
+ case 'A': /* sd */
+ append(buf, loongarch_cr_normal_name[dec->r1], buflen);
+ break;
+ case 'B': /* sj */
+ append(buf, loongarch_cr_normal_name[dec->r2], buflen);
+ break;
+ case 'C': /* r3 */
+ snprintf(tmp, sizeof(tmp), "%x", dec->r3);
+ append(buf, tmp, buflen);
+ break;
+ case 'D': /* r4 */
+ snprintf(tmp, sizeof(tmp), "%x", dec->r4);
+ append(buf, tmp, buflen);
+ break;
+ case 'E': /* r1 */
+ snprintf(tmp, sizeof(tmp), "%x", dec->r1);
+ append(buf, tmp, buflen);
+ break;
+ case 'F': /* fcsrd */
+ append(buf, loongarch_r_normal_name[dec->r1], buflen);
+ break;
+ case 'G': /* fcsrs */
+ append(buf, loongarch_r_normal_name[dec->r2], buflen);
+ break;
+ case 'H': /* cd */
+ append(buf, loongarch_c_normal_name[dec->r1], buflen);
+ break;
+ case 'I': /* cj */
+ append(buf, loongarch_c_normal_name[dec->r2], buflen);
+ break;
+ case 'J': /* code */
+ snprintf(tmp, sizeof(tmp), "0x%x", dec->code);
+ append(buf, tmp, buflen);
+ break;
+ case 'K': /* cond */
+ switch (dec->r4) {
+ case 0x0:
+ append(buf, "caf", buflen);
+ break;
+ case 0x1:
+ append(buf, "saf", buflen);
+ break;
+ case 0x2:
+ append(buf, "clt", buflen);
+ break;
+ case 0x3:
+ append(buf, "slt", buflen);
+ break;
+ case 0x4:
+ append(buf, "ceq", buflen);
+ break;
+ case 0x5:
+ append(buf, "seq", buflen);
+ break;
+ case 0x6:
+ append(buf, "cle", buflen);
+ break;
+ case 0x7:
+ append(buf, "sle", buflen);
+ break;
+ case 0x8:
+ append(buf, "cun", buflen);
+ break;
+ case 0x9:
+ append(buf, "sun", buflen);
+ break;
+ case 0xA:
+ append(buf, "cult", buflen);
+ break;
+ case 0xB:
+ append(buf, "sult", buflen);
+ break;
+ case 0xC:
+ append(buf, "cueq", buflen);
+ break;
+ case 0xD:
+ append(buf, "sueq", buflen);
+ break;
+ case 0xE:
+ append(buf, "cule", buflen);
+ break;
+ case 0xF:
+ append(buf, "sule", buflen);
+ break;
+ case 0x10:
+ append(buf, "cne", buflen);
+ break;
+ case 0x11:
+ append(buf, "sne", buflen);
+ break;
+ case 0x14:
+ append(buf, "cor", buflen);
+ break;
+ case 0x15:
+ append(buf, "sor", buflen);
+ break;
+ case 0x18:
+ append(buf, "cune", buflen);
+ break;
+ case 0x19:
+ append(buf, "sune", buflen);
+ break;
+ }
+ break;
+ case 'L': /* ca */
+ append(buf, loongarch_c_normal_name[dec->r4], buflen);
+ break;
+ case 'M': /* cop */
+ snprintf(tmp, sizeof(tmp), "0x%x", (dec->imm2) & 0x1f);
+ append(buf, tmp, buflen);
+ break;
+ case 'i': /* sixx d */
+ snprintf(tmp, sizeof(tmp), "%d", dec->imm);
+ append(buf, tmp, buflen);
+ break;
+ case 'o': /* offset */
+ snprintf(tmp, sizeof(tmp), "%d", (dec->imm) << 2);
+ append(buf, tmp, buflen);
+ break;
+ case 'x': /* sixx x */
+ switch (dec->bit) {
+ case IM_5:
+ snprintf(tmp, sizeof(tmp), "0x%x", (dec->imm) & 0x1f);
+ append(buf, tmp, buflen);
+ break;
+ case IM_8:
+ snprintf(tmp, sizeof(tmp), "0x%x", (dec->imm) & 0xff);
+ append(buf, tmp, buflen);
+ break;
+ case IM_12:
+ snprintf(tmp, sizeof(tmp), "0x%x", (dec->imm) & 0xfff);
+ append(buf, tmp, buflen);
+ break;
+ case IM_14:
+ snprintf(tmp, sizeof(tmp), "0x%x", (dec->imm) & 0x3fff);
+ append(buf, tmp, buflen);
+ break;
+ case IM_15:
+ snprintf(tmp, sizeof(tmp), "0x%x", (dec->imm) & 0x7fff);
+ append(buf, tmp, buflen);
+ break;
+ case IM_16:
+ snprintf(tmp, sizeof(tmp), "0x%x", (dec->imm) & 0xffff);
+ append(buf, tmp, buflen);
+ break;
+ case IM_20:
+ snprintf(tmp, sizeof(tmp), "0x%x", (dec->imm) & 0xfffff);
+ append(buf, tmp, buflen);
+ break;
+ default:
+ snprintf(tmp, sizeof(tmp), "0x%x", dec->imm);
+ append(buf, tmp, buflen);
+ break;
+ }
+ break;
+ case 'X': /* offset x*/
+ switch (dec->bit) {
+ case IM_16:
+ snprintf(tmp, sizeof(tmp), "0x%x",
+ ((dec->imm) << 2) & 0xffff);
+ append(buf, tmp, buflen);
+ break;
+ case IM_21:
+ snprintf(tmp, sizeof(tmp), "0x%x",
+ ((dec->imm) << 2) & 0x1fffff);
+ append(buf, tmp, buflen);
+ break;
+ case IM_26:
+ snprintf(tmp, sizeof(tmp), "0x%x",
+ ((dec->imm) << 2) & 0x3ffffff);
+ append(buf, tmp, buflen);
+ break;
+ default:
+ snprintf(tmp, sizeof(tmp), "0x%x", (dec->imm) << 2);
+ append(buf, tmp, buflen);
+ break;
+ }
+ break;
+ case 'p': /* pc */
+ snprintf(tmp, sizeof(tmp), " # 0x%"PRIx32"",
+ dec->pc + ((dec->imm) << 2));
+ append(buf, tmp, buflen);
+ break;
+ default:
+ break;
+ }
+ fmt++;
+ }
+}
+
+/* disassemble instruction */
+static void
+disasm_insn(char *buf, size_t buflen, bfd_vma pc, unsigned long int insn)
+{
+ la_decode dec = { 0 };
+ dec.pc = pc;
+ dec.insn = insn;
+ decode_insn_opcode(&dec);
+ decode_insn_operands(&dec);
+ format_insn(buf, buflen, 16, &dec);
+}
+
+int
+print_insn_loongarch(bfd_vma memaddr, struct disassemble_info *info)
+{
+ char buf[128] = { 0 };
+ bfd_byte buffer[INSNLEN];
+ unsigned long insn;
+ int status;
+
+ status = (*info->read_memory_func)(memaddr, buffer, INSNLEN, info);
+ if (status == 0) {
+ insn = (uint32_t) bfd_getl32(buffer);
+ (*info->fprintf_func)(info->stream, "%08" PRIx64 " ", insn);
+ } else {
+ (*info->memory_error_func)(status, memaddr, info);
+ return -1;
+ }
+ disasm_insn(buf, sizeof(buf), memaddr, insn);
+ (*info->fprintf_func)(info->stream, "\t%s", buf);
+ return INSNLEN;
+}
diff --git a/disas/meson.build b/disas/meson.build
index 449f99e..a1bd8b8 100644
--- a/disas/meson.build
+++ b/disas/meson.build
@@ -9,6 +9,7 @@ common_ss.add(when: 'CONFIG_CRIS_DIS', if_true: files('cris.c'))
common_ss.add(when: 'CONFIG_HEXAGON_DIS', if_true: files('hexagon.c'))
common_ss.add(when: 'CONFIG_HPPA_DIS', if_true: files('hppa.c'))
common_ss.add(when: 'CONFIG_I386_DIS', if_true: files('i386.c'))
+common_ss.add(when: 'CONFIG_LOONGARCH_DIS', if_true: files('loongarch.c'))
common_ss.add(when: 'CONFIG_M68K_DIS', if_true: files('m68k.c'))
common_ss.add(when: 'CONFIG_MICROBLAZE_DIS', if_true: files('microblaze.c'))
common_ss.add(when: 'CONFIG_MIPS_DIS', if_true: files('mips.c'))
diff --git a/include/disas/dis-asm.h b/include/disas/dis-asm.h
index 524f291..009a03a 100644
--- a/include/disas/dis-asm.h
+++ b/include/disas/dis-asm.h
@@ -253,6 +253,7 @@ enum bfd_architecture
#define bfd_mach_rx 0x75
#define bfd_mach_rx_v2 0x76
#define bfd_mach_rx_v3 0x77
+ bfd_arch_loongarch,
bfd_arch_last
};
#define bfd_mach_s390_31 31
@@ -462,6 +463,7 @@ int print_insn_riscv32 (bfd_vma, disassemble_info*);
int print_insn_riscv64 (bfd_vma, disassemble_info*);
int print_insn_rx(bfd_vma, disassemble_info *);
int print_insn_hexagon(bfd_vma, disassemble_info *);
+int print_insn_loongarch(bfd_vma, disassemble_info *);
#ifdef CONFIG_CAPSTONE
bool cap_disas_target(disassemble_info *info, uint64_t pc, size_t size);
diff --git a/meson.build b/meson.build
index 2711cbb..66a5f3c 100644
--- a/meson.build
+++ b/meson.build
@@ -1501,6 +1501,7 @@ disassemblers = {
'sh4' : ['CONFIG_SH4_DIS'],
'sparc' : ['CONFIG_SPARC_DIS'],
'xtensa' : ['CONFIG_XTENSA_DIS'],
+ 'loongarch' : ['CONFIG_LOONGARCH_DIS'],
}
if link_language == 'cpp'
disassemblers += {
--
1.8.3.1
next prev parent reply other threads:[~2021-09-17 8:23 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-17 8:12 [PATCH v6 00/21] Add LoongArch linux-user emulation support Song Gao
2021-09-17 8:12 ` [PATCH v6 01/21] target/loongarch: Add README Song Gao
2021-09-20 18:51 ` Richard Henderson
2021-09-17 8:12 ` [PATCH v6 02/21] target/loongarch: Add core definition Song Gao
2021-09-20 18:55 ` Richard Henderson
2021-09-17 8:12 ` [PATCH v6 03/21] target/loongarch: Add main translation routines Song Gao
2021-09-17 8:12 ` [PATCH v6 04/21] target/loongarch: Add fixed point arithmetic instruction translation Song Gao
2021-09-17 8:12 ` [PATCH v6 05/21] target/loongarch: Add fixed point shift " Song Gao
2021-09-17 8:12 ` [PATCH v6 06/21] target/loongarch: Add fixed point bit " Song Gao
2021-09-17 8:12 ` [PATCH v6 07/21] target/loongarch: Add fixed point load/store " Song Gao
2021-09-17 8:12 ` [PATCH v6 08/21] target/loongarch: Add fixed point atomic " Song Gao
2021-09-17 8:12 ` [PATCH v6 09/21] target/loongarch: Add fixed point extra " Song Gao
2021-09-17 8:12 ` [PATCH v6 10/21] target/loongarch: Add floating point arithmetic " Song Gao
2021-09-20 18:56 ` Richard Henderson
2021-09-17 8:12 ` [PATCH v6 11/21] target/loongarch: Add floating point comparison " Song Gao
2021-09-17 8:12 ` [PATCH v6 12/21] target/loongarch: Add floating point conversion " Song Gao
2021-09-17 8:12 ` [PATCH v6 13/21] target/loongarch: Add floating point move " Song Gao
2021-09-17 8:12 ` [PATCH v6 14/21] target/loongarch: Add floating point load/store " Song Gao
2021-09-17 8:12 ` [PATCH v6 15/21] target/loongarch: Add branch " Song Gao
2021-09-17 8:12 ` Song Gao [this message]
2021-09-17 8:12 ` [PATCH v6 17/21] LoongArch Linux User Emulation Song Gao
2021-09-23 6:53 ` Laurent Vivier
2021-09-23 8:42 ` Song Gao
2021-09-17 8:12 ` [PATCH v6 18/21] default-configs: Add loongarch linux-user support Song Gao
2021-09-17 8:12 ` [PATCH v6 19/21] target/loongarch: Add target build suport Song Gao
2021-09-17 8:12 ` [PATCH v6 20/21] target/loongarch: 'make check-tcg' support Song Gao
2021-09-17 8:13 ` [PATCH v6 21/21] scripts: add loongarch64 binfmt config Song Gao
2021-09-20 21:17 ` [PATCH v6 00/21] Add LoongArch linux-user emulation support Richard Henderson
2021-09-22 6:22 ` Song Gao
2021-09-22 9:49 ` WANG Xuerui
2021-09-23 3:09 ` gaosong
2021-09-23 4:26 ` WANG Xuerui
2021-09-23 8:54 ` Song Gao
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